Mecal GUIDE TO QUALITY CRIMPINGThe following information is referred to standard crimping

Unacceptable Acceptable Checks and evaluations

Gen

eral app

eara

nce

Insu

lation

crimping

Wire

crim

ping

Insulation scrapson stripped wire

Strands too twisted Strands not twisted

Damaged insulation Insulation badly cut Strands damagedby stripping tool

Strands crushed byinsulation barrel

Wire stripping too short Loose strands

Wire stripping toolong

Insulation crimped bywire barrel

Wire sectiontoo small

Insulation piercedby insulation barrel

Insulation piercedby insulation barrel

Insulation barrelnot correctly closed

Wire section toobig Insulation barrel notcorrectly shaped

and closed

Insulation barreltoo tight

Insulation barrelnot correctly closed

Crimping notsymmetrical

Excess of materialextrusion

Wrong ordamaged anvil

Crushing not correct,shapeless wirebarrel’s bottom

Wire sectiontoo big

Inadequatecompacting

Wire sectiontoo small

Stripping length precisely set and cutThe wire stripped section must be undamaged The wire stripped section must be clean and freeof insulation scrapsGripping marks on insulation are allowed

Both wire and insulation must be clearly visible

Insulation Wire

Insulation barrel correctly closed

Insualtion barrel correctlyshaped and closed

Insulation barrel correctlyaligned and closed

The crimping is symmetrical. The strands areuniformly compacted, there are no empty spots.

There’s no material extrusion and/or terminal deformation.The flat spots are clearly visible and aligned

Flat spot Flat spotThe flat spots are an important mark of the anvil

on the terminal bottom, they help with the strandscompacting and keep the terminal aligned with the

anvil itselfTerminal has been cutted according to Mecal internally approved procedure

Mea

surements

Pull test

The material estrusion isacceptable when

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